|
[Sponsors] |
September 2, 2010, 07:55 |
single droplet - dieselFoam
|
#1 |
New Member
Join Date: Jun 2010
Posts: 25
Rep Power: 16 |
Hallo Foamers,
I do simulations with the dieselFoam solver on C12H26 - single droplets. The parameters are: Sim1: T = 800K, p = 15 bar, d_0 = 50µm, Tinj = 343K, m = 4,7568949e-11 Sim2: T = 800K, p = 50 bar, d_0 = 20µm, Tinj = 300K, m = 3.1847372e-12 Sim1 is working fine, but on Sim2 I have a really strange problem: The droplet is only existing up to 225µs - and is removed at 250µs. But it should stay at least for 1000µs. The droplet parameters at 225µs are: d = 23,26µm (surface blowing is normal at start), m = 1,91282e-12 (mass evaporatated), T = 657,789K At timestep 250µs, there is no lagrangian folder anymore. Can I stop that the particle is removed? I thought a partical is only remove, if its mass is below 1e-20. I changed the code in parcels.C, that there is no remove below a certain mass, but this had no effect. The particle is still gone at 250µs. Are there any other rules, which remove a particle? Is there any pressure problem in OpenFOAM? Why isn't the simulation running properly with 50 bar? Thanks in advance. Last edited by mystix; September 2, 2010 at 08:54. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
dieselFoam: Summation of total droplet momentum in a Cell | N. A. | OpenFOAM | 7 | September 20, 2010 08:43 |
DieselFoam Droplet Temperature Issues - OF 1.6 | viv05 | OpenFOAM | 0 | February 27, 2010 12:20 |
how to simulate single droplet transcient evaporation using fluent6.3 | Dhb | FLUENT | 0 | May 15, 2009 10:28 |
Boundary Condition for single droplet evaporation | Deepak Kumar Mandal | Siemens | 0 | January 30, 2007 10:25 |
single liquid fuel droplet combustion(unbounded) | Dipankar Chatterjee | FLUENT | 0 | March 18, 2002 07:35 |